Frequently asked questions
The main equipments we use in our foundry are wax injection machines, steam oven, slurry M/C, eldctric de-waxing M/C, casting furnance, shot blasting M/C, machining centers, CMM, spectrograph.
Our main products are high standard lost-wax precision casting parts in weight range from 10g to 20kg, made of carbon steel, alloy steel and stainless steel mostly.
We use Silica Sol only for better surface finish and dimension accuracy of the casting parts.
Standard surface roughness of our investment castings is Ra6.3 – Ra3.2 after ball-blasting, in some cases additional surface treatments need to be applied to investment castings for specific purposes.
We do quality check strictly according to our customers’ request. Samples must be approved by customer before mass production, all parts must be 100% inspected before shipment, a random check with Projector or CMM must be carried out by our QC staff and a detailed measurement report will be sent to our customers. Hardness, mechanical properties and so forth can also be done if requested. Read more about our QC procedure.
We don’t have a Minimum Order Quantity, inquiries in any quantity are welcome and we treat all of our inquiries with equal importance, however the unit price could be relatively higher when the quantity is small, because the mold cost and exporting costs are almost fixed.
We have been exporting precision casting parts since 2004, we have rich experience with parts reqired by oversea customers, which allow us to easily understand our customers’ demand and provide the best quality castings in the shortest leading time.
Have more questions?
Whether you have a question about our products, need assistance or just want to talk, we want to hear from you.
Contact Shanghai Heda Castings